﻿String.prototype.padLeft = function(padChar, width) {
    var ret = this;
    while (ret.length < width) {
        if (ret.length + padChar.length < width) {
            ret = padChar + ret;
        }
        else {
            ret = padChar.substring(0, width - ret.length) + ret;
        }
    }
    return ret;
};

String.prototype.padRight = function(padChar, width) {
    var ret = this;
    while (ret.length < width) {
        if (ret.length + padChar.length < width) {
            ret += padChar;
        }
        else {
            ret += padChar.substring(0, width - ret.length);
        }
    }
    return ret;
};

String.prototype.trim = function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
};

String.prototype.trimLeft = function() {
    return this.replace(/^\s+/, '');
};

String.prototype.trimRight = function() {
    return this.replace(/\s+$/, '');
};

String.prototype.caption = function() {
    if (this) {
        return this.charAt(0).toUpperCase() + this.substr(1);
    }
    return this;
};

String.prototype.startWith = function(compareValue, ignoreCase) {
    if (ignoreCase) {
        return this.toLowerCase().indexOf(compareValue.toLowerCase()) == 0;
    }
    return this.indexOf(compareValue) == 0
};

String.prototype.endWith = function(compareValue, ignoreCase) {
    if (ignoreCase) {
        return this.toLowerCase().lastIndexOf(compareValue.toLowerCase()) == this.length - compareValue.length;
    }
    return this.lastIndexOf(compareValue) == this.length - compareValue.length;
};

var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var base64DecodeChars = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1];

String.prototype.encode = function () {
    var out, i, len;
    var c1, c2, c3;
    var str = escape(this);
    len = str.length;
    i = 0;
    out = "";
    while (i < len) {
        c1 = str.charCodeAt(i++) & 0xff;
        if (i == len) {
            out += base64EncodeChars.charAt(c1 >> 2);
            out += base64EncodeChars.charAt((c1 & 0x3) << 4);
            out += "==";
            break;
        }
        c2 = str.charCodeAt(i++);
        if (i == len) {
            out += base64EncodeChars.charAt(c1 >> 2);
            out += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
            out += base64EncodeChars.charAt((c2 & 0xF) << 2);
            out += "=";
            break;
        }
        c3 = str.charCodeAt(i++);
        out += base64EncodeChars.charAt(c1 >> 2);
        out += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
        out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6));
        out += base64EncodeChars.charAt(c3 & 0x3F);
    }
    return out;
};
String.prototype.decode = function () {
    var c1, c2, c3, c4;
    var i, len, out;
    len = this.length;
    i = 0;
    out = "";
    while (i < len) {
        do {
            c1 = base64DecodeChars[this.charCodeAt(i++) & 0xff];
        } while (i < len && c1 == -1);
        if (c1 == -1)
            break;
        do {
            c2 = base64DecodeChars[this.charCodeAt(i++) & 0xff];
        } while (i < len && c2 == -1);
        if (c2 == -1)
            break;
        out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));
        do {
            c3 = this.charCodeAt(i++) & 0xff;
            if (c3 == 61)
                return unescape(out);
            c3 = base64DecodeChars[c3];
        } while (i < len && c3 == -1);
        if (c3 == -1)
            break;
        out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));
        do {
            c4 = this.charCodeAt(i++) & 0xff;
            if (c4 == 61)
                return unescape(out);
            c4 = base64DecodeChars[c4];
        } while (i < len && c4 == -1);
        if (c4 == -1)
            break;
        out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
    }
    return unescape(out);
};